From Google Desktop to the Windows Sidebar introduced in Vista, there have been several attempts to integrate our online life onto our desktop. But none of them come close to Rainmeter, a totally customizable platform for decking out your desktop with a variety of useful applets that can stand prominently in the foreground or blend into the background.

There's a lot you can do with Rainmeter thanks to a diverse collection of available 'skins' (think of them as widgets), all of which can be individually tailored in look and function. There are skins for keeping tabs on system resources, displaying RSS feeds, sending and receiving Twitter messages, and even recording notes.

Rainmeter isn't at all difficult to use, but there is an initial learning curve as you come to understand just how powerful this unassuming app really is. On the following pages, we'll guide you through the setup process and show you the ins and outs of using Rainmeter. We'll also highlight the 12 best skins out of the hundreds that are available to give you a head start on decking out your desktop like never before.

Hit the jump and let the fun begin!